US1260043A - Grease-cup. - Google Patents

Description

W. H. FUTNAIVI.

GREASE CUP.

APPLICATION FILED OCT-5.1917.

1,260,043. Patented Mar. 19, 1918.

,j 'gz 8 4 g i 4 l 8 8 Ilchrvv'h n TATS AENT j WriLLIA H. :PUTNAM, ormaprsolv, wrsoo vsm, AssIGivoR 10 .MAIDISON-KIPP LUBRI- Caron COMPANY, orMAnIsoN, wrsoonsm; A oonronarron or wrsoonsm.

i and useful Improvement To all whom itmay concern: 7

Be it known that 1, WIL IAM H. Pu'rNAM, a citizen of the United States, residing at ofWisconsin, have invented a certain new i p in Grease-Cups, of which the followin is a specification.

This invention re ates to grease cups employed forsupplying lubricant to journals and bearings, and itconsistsprimarily in providing thesaine with yieldinglyesup- *ported wiper co-acting with the annular edge or open end ofthe cup, to-remove dust anddirt therefrom whenfremoving the cup for filling. Theiinventionis susceptible of embodiment in somewhat variant forms, a

i preferred form being illustrated in the ac- H companyingdrawing, in which: i a

i F "gure 1 "s a partly sectional elevation of the improvedcup with the cap member in its initial position, or the position it occuf pies when charged with lubricant,

in full lines and with the 1 Fig.2, a similarfview but with the base cap. advanced to itslowermost position; a e. Q Fig. 3, a bottom face'view of the cup and wiper; and

Fig.4, a perspective view of the: wiper "and its supporting spring-arm detached from .theybaseto. which it is normally sea cured.

In the use of grease cups, particularly on automobiles and other road vehicles, dust I e and grit are found to accumulate onthe an- 1 .8

. .member, and this accumulationin theabnularedge or open end of the cup or'cap sence of great care, is liable to be carried into the cup and mingled with the lubri- 'cantinth'e act of charglng the cup, with consequent injury to andexcessive wear of i the partsto whichthe-lubricant is applied.

While this ditiicultymay be minimized by specialmeans, the presence of thedustand grit is under any and all conditions, highly undesirable, and its removal important.

Referrlng a amto the drawings, my 1mproved construction will be explained. 1 in dicates the usual baseor supporting'memf. f ber,here shown as comprising an annular threaded tubular neck or nipple having a "polygonal wrench receiving section inter- .mediate the main body and the threaded body or. main portion and an externally nipple. The peripheral surface of the body is screw-threaded or otherwise fashioned,

Specification of Letters Patent. Paytent ed Mar, 19,1918, Application filed October 5,1917. Serial No. 194,944.

to enable it to interlock or makeconnection with a correspondingly threaded or fas'lr V ioned cup or cap member 2. 'In the present lnstance the base member 1 is shown pro vided Wlth a peripheral thread, and thecup or cap member is internally threaded to fit and screw upon the peripheral screw thread of the base, so that arsecure and close fitting connection isobtainedbetween the two, and so also that by rotating the cap member it may be lowered and made to force its contained lubricant through the central discharge opening of the base, as required. Thus far the construction is-tliat commonly employed in grease cups of this general character. i i p i I By reference to Figs. 1 and ,2 it will be observed that the annular edge or lower end of the. cup or cap memberis exposed to dust and grit carried by the air orwcon 'tained in mud and water thrown by the wheels of the vehicle, and that hence said edge being commonly coated with aQfilm of lubricant, will speedily become covered with suchdust and grit. The sameis true of that portion of the internally threaded surface of thecup or cap member which is advanced beyond the threaded portion of the base 1, but this is practically or comsame upon an elasticor yielding support 4-. In the drawing this support isshown in the form of a curved w re spring, provided at one end with an eye 5 to receive a fastening screw or rivet 6, and at the opposite end with a similar eye 7 to receive a rivet or equivalent fastening 8 by which the wiper 3 is attached to said supporting arm; The pad-carrying end of the spring armls ad visably fash oned to give a somewhat extended support to the outerface of the pad, which latter when the cup or cap member 2 is in its initial adjustment, stands at an "angle to theplane or face of the annular end of the cup, as shown in Fig. 1. In addition to the fasteningG a staple or eye'9 is provided, beingmade integral with or secured to the basal in such manner as to hold

Images